Web 51 - LIBW Library

/lib/libw.a

The libw library contains arithmetic, logic, I/O, and other functions.

Arithmetic and logic operations are described in section P-Instructions for arithmetics and program branches

div2x2 div2x1 - divide 2-byte number by a 1-byte nubmer

paddn paddn - add two numbers (any size)

paddwi paddwi - add two 16-bit numbers

pandwi pandwi - binary AND of two 16-bit numbers

pbitwi pbitwi - TEST a 16-bit number

pcmpbi pcmpbi - compare two 8-bit numbers

pcmpwi pcmpwi, pcmpn - compare two 16-bit numbers, compare strings

pshiftw pshiftw - shift unsigned 16-bit number left/right

psubwi psubwi - subtract two 16-bit numbers

pxorwi pxorwi - binary XOR of two 16-bit numbers

Physical I/O functions

1wire DS1Reset, DS1Rd, DS1Wr - Dallas 1-Wire bus control

disp4 d_inst, d_data, d_clr, d_home, d_read, d_init - 2-line LCD control (over a 4-bit bus)

ds1620 init_ds1620, read_ds1620 - write temperature from a DS1620 thermometer into a TCP channel

i2c read_current, read_random - read data from I²C memory

serial getchar, putchar, ... - communication over the serial line, described in Serial line support

spi spiout, spiin - SPI bus control

Functions for output to the serial line

drams DumpRAMtoSerial, PrintCrLf - dump processor memory in Hex to the serial line, write CR/LF to the serial line

outdecb outDecb - write 8-bit number in decimal (Dec) format to the serial line

outhexb OutHexb, PNibl - write 8-bit number in hexadecimal (Hex) format to the serial line, conversion principles are described in Converting 8-bit numbers to ASCII

outstrg OutStrg - write text from processor memory to serial line

pdebug pdebug - write 16-bit number in Hex format to serial line

Functions for output into TCP/IP channel

senddecb sendDecb - write 8-bit number in Dec to TCP channel

sendhexb sendHexb, sNibl - write 8-bit number in Hex to TCP channel

sendstr send_string - write text from processor memory to TCP channel

Other functions and modules

clone cloneEther, cloneIP, cloneGW - copy MAC a IP into pre-constructed packets

clonep cloneIPpoint - copy IP address for establishing communication into preconstructed packets

filecpu - filesystem header in the processor flash memory

fileee - filesystem header in the processor eeprom

http http, open_http - http processing

ipconfig IP/MAC configuration detection in eeprom

packet xmit_frame, send_pkt, rcv_pkt, ... - packet driver for RTL8019, described in Driver initialization, Transmitting packets, Receiving packets

pcode pcode, pcall, ... - P-Code interpreter, described in P-Code Structure and Interpreter

pe2s pe2s - copy a string from eeprom to processor data memory

pmovb pmovb - copy 8-bit number between locations in processor data memory

pmovbi pmovbi - move 8-bit constant to processor data memory

pmovwi pmovwi - move 16-bit constant to processor data memory

ps2s ps2s - copy string between locations in processor data memory

Notes

modul.asm module source code

modul.obj compiled module, part of libk

functions exported by module are denoted with this font

Described sources of this library are freely available - see DOWNLOAD.